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package bpod
import (
"encoding/json"
"fmt"
"math/rand"
"tildegit.org/andinus/cetus/request"
)
// BPOD holds the response from the api.
type BPOD struct {
StartDate string `json:"startdate"`
FullStartDate string `json:"fullstartdate"`
EndDate string `json:"enddate"`
URL string `json:"url"`
URLBase string `json:"urlbase"`
Copyright string `json:"copyright"`
CopyrightLink string `json:"copyrightlink"`
Title string `json:"title"`
Hsh string `json:"hsh"`
}
// List holds the list of BPOD.
type List struct {
Photos []BPOD `json:"images"`
}
// MarshalJson takes res as input and returns body. This remarshaling
// is required because of a bug. To learn about why this is required,
// remove this function & then run `cetus set bpod -random`. Put a
// `fmt.Println(res, body)` somewhere and look at how they differ. res
// will contain a single entry but body will have all 7 entries which
// is bad because body is cached to disk to view later.
func MarshalJson(res BPOD) (string, error) {
out, err := json.Marshal(res)
if err != nil {
err = fmt.Errorf("%s\n%s",
"MarshalJson failed",
err.Error())
}
body := string(out)
return body, err
}
// UnmarshalJson will take body as input & unmarshal it to res,
func UnmarshalJson(body string) (BPOD, error) {
list := List{}
res := BPOD{}
err := json.Unmarshal([]byte(body), &list)
if err != nil {
return res, fmt.Errorf("UnmarshalJson failed\n%s", err.Error())
}
res = list.Photos[rand.Intn(len(list.Photos))]
return res, nil
}
// GetJson takes reqInfo as input and returns the body and an error.
func GetJson(reqInfo map[string]string) (string, error) {
// reqInfo is map[string]string and params is built from it,
// currently it takes apiKey and the date from reqInfo to
// build param. If any new key/value is added to reqInfo then
// it must be addded here too, it won't be sent as param
// directly.
params := make(map[string]string)
params["format"] = "js"
params["n"] = "1"
// if random is true then fetch 7 photos
if reqInfo["random"] == "true" {
params["n"] = "7"
}
body, err := request.GetRes(reqInfo["api"], params)
return string(body), err
}
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